use blur event instead of interval

Author: DerTyp7

addon.json

@@ -1,7 +1,7 @@
 {
 	"id": "fixavatars",
 	"name": "FixAvatars",
-	"version": "1.0.0",
+	"version": "1.1.0",
 	"inject": "index.html",
 	"injection_point": "HEAD",
 	"inject_at": "TAIL",

src/main.js

@@ -14,8 +14,4 @@ function fixAvatars() {
 	});
 }
 
-// Interval because of new avatars being added to the DOM (e.g. new friend added or new group joined)
-setInterval(fixAvatars, 5000);
-
-// Timeout to make sure avatars are loaded before fixing them. If your PC is too slow the interval above will fix them anyway.
-setTimeout(fixAvatars, 1000);
+window.addEventListener("blur", fixAvatars);